Mine TDirectory fOnlineHistDir (rootana online ) has more then 1000 histograms
with difficult hierarchy. Starting roody -P (TNEtDirectory support) takes 30-60
seconds, when jsroot THttpServer ready to go in a moment.
> roody failed to start with -P flag
> running rootana analyzer with -P argument
> commenting RecursiveRemove in TNetDirectory(.cxx .h) (rootana) helps.
> Any other suggestions?